Ventilator.



I. P. EKSTROM.

VENTILATOR. APPLICATION FILED OUT. 29, 1908.

911,648; Patented Feb. 9, 1909.

2 SHEETS-SHEET 1.

' IIII'I.

I5 III.

,J. P. EKSTROM.

I VENTILATOR.

APPLIOATIQN FILED OUT. 29, 1908.

Patented Feb. 9, 1909.

' 2 SHBETS SHEET 2.

"s PAT JOHN P. EKSTROM, OF BOYNE, MICHIGAN.

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Specificationof Letters Patent.

Patented Feb. 9, 1909.

Application filed October 29, 1908. I Serial No. 359,980.

To all whom it may concern:

Be it known that l, J 01m P, EKSTROM, Boyne, 1n the county of Charlevoix, 1n the State of Michi an, have invented certain new and useful mprovements in Ventilators, of which the following is a specification.

This invention relates to ventilators of the class shown in Letters Patent of the. United States No. 389,027 of March 27, 1888, is sued to me, and is for improvements upon the construction set forth in said prior patent, wherein the valved ilue leadingfrom the chamber into which the'fu'mes from the room pass to the. chimney, is joined to the top of said chamber and extends" upwardly therefrom, and the fumes entering said chamber pass directly upward therein to said flue.

The objects of myimprovementsare, first,

to provide means for producing areversion of the current of" fumes downward in the chamber on their passage tothe valved flue and thence upward through the" same;secnd, to provide a form of ventilator which is better adapted to be set in the chimney wall,

.and third, to provide, in the lower portion of the chamber and flue, anaccessible pocket for catching the soot fallingtherein, from which the accumulation can be conveniently removed as occasion requires. 1 attain these objects by the mechanism illustrated in the accompanying drawing in which:

Figure 1 is a front elevation, with portions broken away, of a ventilator, containin my invention shown as set in a chimney wall. Fig. 2 is a vertical section on line 2 2 of Fig. 1, the section being extended through the chimney shown in fragment and parts of the valve working mechanism being in elevation. r Similar signs marked onthe drawing refer to similar parts throughout both views.

The numeral 3 designates a front plate which is provided with a large opening at 4 covered by a door 4 ornamented with open work to allow a circulation of air through it. Below this opening is a circular opening 5- having an annular flange 6 for the stove pipe to fit in. The chamber? into which the fumes pass from the room lies directly behind the door 4. and preferably has a slight rearward extension at 7 a (Fig. 2) of the upper portion. Aflplate 8 forms the bottom plate of said chamber. The front of the chamber at the lower portion is covered by a plate 9 which has lugs or projecting portions, shown by dotted lines (Fig. 1) extending behind the front plate 3 and secured to the side plates A of the chamber by screw bolts as shown at 9 (Fig.

2) passing through flanges of said side plates.

The plate '9 is providedwith an opening 10 nearly closed by a door 11 which is held by lugs 12 operating as stops against its front and rear and permitting it to be set in place erlifted out by means of a handle 13.

.The top plate 1 1 and rear plate 15 of the chamber are cast with the side plates A and said rear plate is provided with an exit opening 16 opposite to and somewhat below the level of the upper edge of plate 9.

The valved flue comprises a curved plate '17 cast, with side pieces 18 whose front edges are curved so as to fit close against the outer margin of the rear late 15 and just outside the opening 16. it it held in place upon rear plate 15 by means of a screw bolt 19 near the top so that a passage for the fumes is provided at the rear of the chamber. The lower edge of plate 17 is provided with an extension made narrow to pass through opening 16 and meet the rear edge of the plate 8 which it passes under. It is curved back to engage the lower edge of said opening for holding it to plate 15 below the bolt. The valve 20 is pivoted to the upper edge of plate 17 and adapted to turn down between the side plates 18 and rest against the rear edge of plate .1 or back of plate 15 to close the passage, and to turn up in line with the plate 17 as shown by dotted lines (Fig. 2). When so turned up it operates as an upward extension of the plate 17 which contributes to promote the upward draft of the. fumes above the upper end of said flue. Stops 21 are provided to prevent the valve from turning too far back. A roclcshaft 22 journaled in the plate 17 and in a front cross bar 23, having an arm 24 connected by aflink 25 with the valve, and two arms 26 provided with depending chains 27 constitutes themeans for operating the valve. The chains pass through screw eyes 28 set in the front plate.

Itis noted that the door 11 does not entirely close the opening 10 in plate 9 at Working the valve. Said aims and their 4 chain connections are so adapted its to cover 1 e iottoni of door 11 to the rear, the open space in said plate eoove the door .-,gi-e:tt;e1'in vertical er'tent when the valve 20 is wite cen because it c hetxi'een the phi-tee 15 em! 5 i preferred to close the open vei said of the valved lhie form :1

door Wl'ien the valve is open. Tins inecion oi eonsiilemhle depth, 70 tica so? plate 8 and portly hy the :ortien oi" the phtte 17, which i to catch, and hold the fell- ()ELSl OEzLlElO extort without way through exit 7 we then the passage lhie. Also that such accessible through the ctioii constitutes the 1' 1r oottoineo lei-Sci c i J tion of the ttoni ie'e and leave The side plates of the chain oer an shown as extended bGiOW provided Witi tl ese an anon i of the thiiui. ohieet so for stove 1 is thinihlc in '11 US deseiilml in improvement, fro l) and desire to seeuie by Letters the f in t" i .A '2 tle (hiss desel'lhml, :2 85 not to obstruct t e i i 1, enti'eiiee o ienmg To facilitate the i and an exit openinto an opening J on, in eonihmzition 36 for holding the sa 7 Qbvionsly the of the chamber tl e bo 0 ill S i ticn might he s" .t and ineelizinism for H3, :is specilicil.

liit'LUl of the ehiss descrihexl, 95

H1 enti'zieee opening "op or m exit openin stove pipeopeniin ii exit opening producin the i l: enti'zmc'e open The arrow in l e eonmmiiient- 100 designed to show V .7 r V and extending item the stove pipe o h i v w f re in said lhie and the arrows in the eh i i valve, as specified. 40 show the course 0" i i 1 re )(liISS ihsseiiheil, a

ass from 310 10 rov ed m (nitignee opening 105 of the door 4 t entrance opening through the exit 0 when the valve 20 is e chamber proviii opening located the the admission of the ii on, {in opening in its lower portion h it door for (losing N110, and opening in its rem 1' portio in. eomhinotioi with. :1, lhie veiled upwardly therel'rom, :1.

7'10 top of the hue :nnl .iiieens cart and the exit ooenm -i y same. as SKCll td. 1 1 i Y e l lower part on i the veivee ol the class le LIllHli the chamber thence em her and he and providec form a foi'oi'ornot for the and nenied obje of the velvet ton is lo' bottom of ti pact consti'e ti is better ade '1 e 1 chimney 1' It is noted tlae the bottom plate 8, prefcomprising;

,uovt uppeipoi ion, an o; l \"{(3l portion liming; a, closi gdoor, an exit opening in its TOM lower hei't 1 lTCttiilUO com ted mlhthe er ftt said exit opening, the parts 12 \i to f'oiim :L pocket :1"; ll e holx/ P- m m 'i v1 I x in, Weiss. e miong n 1m,

i IICliIS'lllOM.

"h the ehzzinihei' at said exit S ninihei ol'ox'hled with mi en- 

